I have a issue that is killing me !!!!
Windows 2012 R2
CR 2011 (13.0.2000)
Our production web project currently compiled/published in Visual Studio 2012. All reports load and work correctly in viewer with no issues.
We installed VS 2015, moved/imported the project, built/compiled and installed on same server in a different site for testing. With no changes to any code, now all of the reports give the "Invalid report File Path" error.. The viewer looks like it is loading correctly. The error seems to be in the viewer. I have verified the code to make sure nothing changed. I have verified the path and permissions to all the folders (report, temp, etc.). I have also run process monitor and do not see any errors. I actually can see it report being opened and the temp files being created while it attempts to run. I am lost on what to look for next.. Any help wold be greatly appreciated.